Pietro Fiorentini Zero Governor F3Z Regulator
Pietro Fiorentini’s ZERO Governor F3Z is a self-acting, air/gas ratio pressure regulator designed for high-precision control in combustion applications. Built to comply with ANSI Z21.8 standards, the F3Z is ideal for use in burner systems, mixing tees, proportional pre-mixers, and nozzle mixers. With a balanced valve and double-diaphragm design, this regulator ensures consistent air/gas ratios—even with fluctuating inlet pressures—while providing a secure backup in case of diaphragm failure.
Key Benefits
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Maintains constant air/gas ratio across flow conditions
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Accurate outlet pressure control regardless of inlet pressure variations
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Double diaphragm for enhanced safety and failure protection
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Complies with ANSI Z21.8 and CSA 6.22 standards
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Suitable for natural gas, LPG, and non-corrosive gases
Features
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Balanced valve design for high outlet pressure accuracy
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Air/gas ratio control of 1:1
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Nozzle, burner, and mixer compatible
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Optional integrated filter
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Durable construction with corrosion-resistant materials
Benefits
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Increases safety and combustion efficiency in burner systems
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Reduces risk of system failure due to diaphragm redundancy
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Adapts to changing airflows in real-time for better flame stability
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Minimizes emissions and optimizes fuel consumption
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Easy maintenance via top-entry design
Capability
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Inlet pressure: up to 7.25 PSIG
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Outlet pressure: 0.2 – 60.2" W.C.
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Compatible with control air pressure: 0.2 – 60.2" W.C.
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Sizes: 1/2" to 4" NPT or ANSI 150RF
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Minimum ΔP (Pu – Pd): 8" W.C.
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Ambient operating range: 14°F – 140°F
Construction
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Double-diaphragm fail-safe design
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Optional integrated stainless steel filter
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Air connection: 1/4" NPT
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Heavy-duty housing with optional ANSI flange connections
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Integral bypass drilling option for added control
Related Resources
Description |
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Zero Governor Brochure.pdf |